Private multimedia contents broadcasting equipment which uses ISM radio frequency band or U-NII 5GHZ radio frequency band, private multimedia contents broadcasting system and method thereof

ABSTRACT

An individual multimedia contents broadcasting equipment is disclosed, which includes an individual broadcast process unit which provides a private IP through a DHCP (Dynamic Host Configuration Protocol) to a receiving terminal, which requests a connection, and makes a connection of the receiving terminal through a radio network, and transmits a broadcast content to the connected receiving terminal; and a radio communication unit which forms a radio network and communicates data with the connected receiving terminal through the radio network.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.13/837,808 filed on Mar. 15, 2013, now U.S. Pat. No. 9,210,123 issued onDec. 8, 2015, which is a continuation of U.S. patent application Ser.No. 12/446,768 having a 371(c) date of Apr. 23, 2009, now U.S. Pat. No.8,660,116 issued on Feb. 25, 2014, which is a U.S. national stageapplication of International Application No. PCT/KR2008/005768 filed onOct. 1, 2008, which claims the benefit of Korean Patent Application Nos.10-2008-0001509 filed on Jan. 5, 2008, and 10-2008-0091660 filed on Sep.18, 2008, in the Korean Intellectual Property Office, the entiredisclosures of which are incorporated herein by reference for allpurposes.

TECHNICAL FIELD

The present invention relates to a personal multimedia contentsbroadcasting equipment and a method thereof which provide functions forto broadcasting multimedia contents such as a text data, a symbol data,a music data, a sound data, an audio data, a video data, an image data,a photo data or something, with their intellectual properties belongingto individuals, respectively, to a specific receiving terminal by usingan ISM radio frequency band or a U-NII 5 GHz radio frequency band.

CITED REFERENCES

-   1. RFC2131 Dynamic Host Configuration Protocol, 1997. 3.-   2. RFC3442 The classless Static Route Option for Dynamic Host    Configuration Protocol (DHCP) version 4, 2002. 12.-   3. RFC4280 Dynamic Host Configuration Protocol (DHCP) Options for    Broadcast and Multicat Control Services 2005. 11.-   4. RFC1918 Address Allocation for Private Internets, 1996. 2.-   5. RFC3580 IEEE802.1x Remote Authentication Dial In User Service    (Radius) Usage Guidelines, 2003. 9.-   6. UO 2003-22652 (Honeywell Federal Manufacturing & Technologies,    LLC), 2003 Jan. 30-   7. Regulation improvement ways for Domestic ISM Industry Promotion    [On-line], 2007. 4. ETRI. Trend analysis of Electronic and    communication, 22-2nd book (Searched date: Nov. 6, 2007)-   8. Introduction to ActiveX Controls [on-line], 2007. (Searched date:    Nov. 6, 2007)-   9. Windows media player [on-line], 2007. (Searched date: Nov. 6,    2007)

BACKGROUND ART

Generally, a conventional multimedia contents broadcast is equipped witha radio communication network for broadcasting multimedia contents whoseintellectual properties belong to individuals, and uses a system of aservice provider who provides an individual multimedia contentsbroadcasting service based on the above radio communication network.

In more details, an individual multimedia contents broadcast might beperformed by using a system belonging to a service provider which isequipped with a DHCP server which allocates a public IP to an individualuser for a connection with a service provider's network based on a radiocommunication network after an individual broadcast radio frequency bandis reported to a public organ, which controls and manages a radiocommunication, and receives an authentication from the same; anauthentication server which manages the processes that an individualuser connects to a multimedia contents DB server which is set by theservice provider; a multimedia contents DB server of the serviceprovider which stores an original version multimedia contents or editedmultimedia contents whose intellectual properties belong to individualusers; and a playback tool storing server which provides playback toolsso that a certain user can playback a corresponding multimedia contentsstored in the multimedia contents DB server of the service provider.

However, it is disadvantageous that an individual multimedia contentsbroadcast using a service provider's system should use a radio frequencyband authenticated by a public organ which controls and manages a radiocommunication, and an individual user should pay a service charge forthe use of a radio communication network and should further pay aservice charge for the use of a public IP used for a connection with theservice provider's system. In addition, the individual users should allrequest services on the use of a service provider's system so as to usea multimedia contents DB server of the service provider. The individualusers are needed to have individual user's authentications from theservice providers all the time whenever connecting to the serviceprovider's system. The individual users should use the above system eventhough they feel a lot of inconvenience in the use of the above systems.In worse case, it is needed to assign the intellectual properties of themultimedia contents belonging to the individual users to the serviceprovider.

DISCLOSURE OF INVENTION

Accordingly, it is an object of the present invention to provide privatemultimedia contents broadcasting equipment which uses an ISM radiofrequency band or U-NII 5 GHz radio frequency band, a private multimediacontents broadcasting system and method thereof which overcomes theproblems encountered in the conventional art.

To achieve the above objects, an individual multimedia contentsbroadcasting equipment which comprises an individual broadcast processunit which provides a private IP through a DHCP to a receiving terminal,which requests a connection, and makes a connection of the receivingterminal through a radio network, and transmits a broadcast content tothe connected receiving terminal; and a radio communication unit whichforms a radio network and communicates data with the connected receivingterminal through the radio network. The individual multimedia contentsbroadcasting equipment includes an input unit which has at least oneamong an operation unit, a microphone and a camera for producingmultimedia contents; and an output unit which has a display unit and aspeaker for playing back the broadcasting is multimedia contents, andthe individual broadcasting process unit creates and stores a broadcastcontent using a data inputted through the input unit depending on abroadcaster's operation and outputs the multimedia contents stored orreceived depending on the broadcaster's operation through the outputunit.

The radio network uses either an ISM (Industrial Science and Medical)radio frequency band or a U-NII 5 GHz radio frequency band.

The individual broadcasting process unit includes a broadcast modulewhich creates and stores a broadcast content using a data inputtedthrough the input unit and provides a temporal IP to the receivingterminal, which requests a connection, and makes a connection of thereceiving terminal through a radio network, and transmits a broadcastcontent to the connected receiving terminal; a storing device whichstores an individual broadcast multimedia content created by thebroadcast module; and a controller which controls the broadcast module,the storing device, the input unit, the output unit and the radiocommunication unit in accordance with a control signal inputted throughthe input unit for thereby performing an individual multimedia contentbroadcast.

The individual multimedia contents broadcasting equipment transmits onecontent among an individual broadcasting multimedia content created inreal time from the content creation module depending on a broadcaster'soperation, an individual broadcast multimedia content stored in thestoring device, an individual broadcast multimedia content which iscreated in real time, and a content which is combined with theindividual multimedia contents stored in the storing device.

The broadcast module includes an input and output module for controllinga data input through the input unit and a data output through the outputunit; an individual broadcast process module which creates a multimediacontent in real time by using a data inputted through the input unit,and allocates a private IP through a DHCP function to the receivingterminal which requests a connection, and sets a connection, andretrieves the provided private IP and disconnects the connection; and aradio communication module which broadcasts an individual broadcastmultimedia content based on the broadcaster's operation to the connectedreceiving terminal by controlling the radio communication unit.

The individual broadcast process module includes a content creationmodule which creates a multimedia content in real time by using a datainputted through the input unit; a DHCP module which allocates a privateIP through a DHCP function to a receiving terminal which requests aconnection, and sets a connection, and retrieves the allocated privateIP and disconnects the connection; and a private IP management modulewhich stores and manages the private IP information which might beallocated to the receiving terminal and the allocated private IPinformation.

The individual broadcast module includes a playback tool managementmodule which automatically install a multimedia content playback toolwhen the connected receiving terminal does not have a content playbacktool for thereby playing back the multimedia contents; an authenticationmodule which performs an authentication by using information from theconnected receiving terminal and permits a receipt when theauthentication is allowed, and when the authentication is failed, itretrieves the allocated private IP and disconnects the connection; and aconnection terminal management module which monitors in real timeconnection information including at least one between the number ofconnected receiving terminals and a connection state and indicates thecurrent connection information through the output means periodically.

The individual multimedia content broadcasting equipment forms anindependent network for an individual broadcast using a private IPthrough the DHCP function.

The individual multimedia content broadcasting equipment receives anallocation of the private IP of another individual multimedia contentbroadcasting equipment for thereby receiving broadcast, and theindividual multimedia content broadcasting equipment is capable ofperforming a relay broadcast which requests a receipt of the multimediacontents received from another individual multimedia contentbroadcasting equipment.

The individual multimedia content broadcasting equipment has anexpandable independent network for an individual broadcast through arelay broadcast function.

The individual multimedia content broadcasting equipment is a fixedbroadcast device or a mobile broadcast device.

To achieve the above objects, in an individual multimedia contentbroadcasting system which includes a receiving terminal, a radionetwork, and an individual multimedia content broadcasting equipment,there is provided an individual multimedia content broadcasting systemwhich comprises a receiving terminal which requests a connection to anindividual multimedia content broadcasting equipment through a radionetwork depending on a viewer's request, and receives an allocation of aprivate IP, and is connected, and receives a broadcasting content fromthe individual multimedia content broadcasting equipment and plays backthe same; and an individual multimedia content broadcasting equipmentwhich creates and stores a broadcast multimedia content depending on abroadcaster's operation, and allocates a private IP depending on aconnection request of the receiving terminal, and forms the radionetwork, and transmits the broadcast multimedia contents to thereceiving terminal depending on the broadcaster's operation.

The radio network uses either an ISM radio frequency band or a U-NII 5GHz radio frequency band.

The radio network is an independent network for an individual broadcastby using a private IP through a DHCP function of the individualmultimedia content broadcasting equipment.

The individual multimedia content broadcasting system further includesan individual multimedia content broadcasting relay equipment whichreceives an allocation of the private IP from the individual multimediacontent broadcasting equipment and receives an individual broadcast andrelays an individual broadcast depending on a request of the receivingterminal in a region of the relay radio network which requests thereceived individual broadcast view.

To achieve the above objects, in an individual multimedia contentbroadcasting method which includes a radio network, a receiving terminaland an individual multimedia content broadcasting equipment, there isprovided an individual multimedia content broadcasting method whichcomprises (a) a step in which a broadcast multimedia content is selectedby means of a broadcaster's operation; (b) a step in which a connectionrequest is received from a receiving terminal in a region of the radionetwork; (c) a step in which a private IP is provided to a receivingterminal, which requested a connection, for thereby forming andconnecting an individual broadcasting independent radio network; (d) astep in which when an authentication step is set, an authentication of areceiving terminal is performed by receiving an authenticationinformation from the receiving terminal; (e) a step in which when anauthentication is failed, the private IP is retrieved, and theconnection is disconnected, and when an authentication is succeeded, itis judged whether a playback tool is installed or not in the receivingterminal, and when it not installed, the playback tool is installed; and(f) a step in which a broadcast multimedia content selected by thebroadcaster in the step (a) is transmitted.

To achieve the above objects, in an individual multimedia contentbroadcasting method which includes a radio network, a receivingterminal, an individual multimedia content broadcasting equipment, andan individual multimedia content broadcasting relay equipment, there isprovided an individual multimedia content broadcasting method whichcomprises (1) a step in which an individual multimedia contentbroadcasting equipment selects a broadcasting multimedia contentdepending on a broadcaster's operation; (2) a step in which anindividual multimedia content broadcasting equipment receives aconnection request from the individual multimedia content broadcastingrelay equipment in a radio network region; (3) a step in which anindividual multimedia content broadcasting equipment provides a privateIP to the individual multimedia content broadcasting relay equipmentwhich requested a connection for thereby forming an individualbroadcasting independent radio network; (4) a step in which anindividual multimedia content broadcasting equipment transmits abroadcasting multimedia content to the individual multimedia contentbroadcasting relay equipment; (5) a step in which an individualmultimedia content broadcasting relay equipment receives a connectionfrom a receiving terminal in a region of a relay radio network; (6) astep in which an individual multimedia content broadcasting relayequipment provides a private IP to a receiving terminal which requests aconnection for thereby forming a relay broadcasting independent radionetwork; (7) a step in which when an authentication function is set, anindividual multimedia content broadcasting relay equipment receives anauthentication information from the receiving terminal for therebyperforming an authentication of the receiving terminal; (8) a step inwhich when an individual multimedia content broadcasting relay equipmentfails an authentication, the private IP is retrieved, and the connectionis disconnected, and when the authentication is succeeded, it is judgedwhether a playback tool is installed or not in the receiving terminal,and when the tool is not installed, the tool is installed; and (9) astep in which an individual multimedia content broadcasting relayequipment transmits a broadcast multimedia content received in the step(4).

Effects

In the present invention, since it is possible to broadcast individualmultimedia contents whose intellectual properties belong to individualsby using an ISM radio frequency band or a U-NII 5 GHz radio frequencyband which can be used for free by individuals for a radio communicationwithin a shorter distance in a specific region or a building in a rangewhich does not interfere with the communications of other radio stationsfor thereby providing individual users with an economical advantage forthe use of a free radio frequency. Since a private IP is used forsetting a connection to a receiving terminal, an economical advantagecan be also obtained as compared to the use of a public IP. Since anauthentication function is operational, a connection to a receivingterminal can be controlled by an individual. When there is not amultimedia contents playback tool in a receiving terminal which requestsa connection, a playback tool can be automatically installed, and aconnection state of a connected receiving terminal can be checked inreal time for an efficient management.

In addition, the present invention allows an individual user to easilyset an individual multimedia contents broadcast.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of an individual multimedia contentsbroadcasting system according to an embodiment of the present invention.

FIG. 2A is a block diagram of a physical internal construction of anindividual multimedia contents broadcasting equipment in an individualmultimedia contents broadcasting which uses an ISM radio frequency bandor a frequency band according to an embodiment of the present invention.

FIG. 2B is a block diagram of a logical internal construction of anindividual multimedia contents broadcasting equipment in an individualmultimedia contents broadcasting which uses an ISM radio frequency bandor a U-NII 5 GHz radio frequency band according to an embodiment of thepresent invention.

FIG. 3 is a block diagram of an inner construction of a receivingterminal which is capable of receiving an individual broadcast in anindividual multimedia contents broadcasting which uses an ISM radiofrequency band or a U-NII 5 GHz radio frequency band according to anembodiment of the present invention;

FIG. 4 is a flow chart of an individual broadcast procedure of anindividual multimedia contents broadcasting equipment in an individualmultimedia contents broadcasting which uses an ISM radio frequency bandor a U-NII 5 GHz radio frequency band according to an embodiment of thepresent invention.

FIG. 5 is a view of a relay broadcast method of an individual multimediacontents broadcasting equipment in an individual multimedia contentsbroadcasting which uses an ISM radio frequency band or a U-NII 5 GHzradio frequency band according to an embodiment of the presentinvention.

FIG. 6 is a view of an individual multimedia contents broadcastingservice method in an individual multimedia contents broadcasting whichuses an ISM radio frequency band or a U-NII 5 GHz radio frequency bandaccording to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a schematic view of an individual multimedia contentsbroadcast system according to a preferred embodiment of the presentinvention. As shown in FIG. 1, an individual multimedia contentsbroadcast system according to the present invention comprises areceiving terminal 300, a radio network, and an individual multimediacontents broadcasting equipment 100 a.

The receiving terminal 300 is connected to an individual multimediacontents broadcasting equipment 100 a as it requests a connection to anindividual multimedia contents broadcasting equipment 100 a through aradio network formed by means of an individual multimedia contentsbroadcasting is equipment 100 a depending on a user's operation andreceives a private IP.

The receiving terminal 300 is capable of receiving and playing back thebroadcast contents from the individual multimedia contents broadcastingequipment 100 a.

The receiving terminal 300 might be a mobile communication terminalhaving an input unit such as an operation unit 104 a, an output unitsuch as a speaker 104 d and a LCD 104 e, and a radio communication unit102 for a data receiving and transmission through the radio network ormight be a portable individual information communication instrument suchas a PDA, a palm top computer, a UMPC, a navigation device, a portablegame unit or the like. Here, the radio network according to the presentinvention is constructed to perform a radio data communication based onthe IEEE 802.11 protocol. So, there is provided a radio communicationunit 102 which supports a data communication based on the IEEE 802.11protocol. The radio network according to the present invention might beconfigured to use various universal radio data communication protocolsexcept for the IEEE 802.11 if necessary. The construction and functionsof the receiving terminal 300 will be described later with reference toFIG. 3.

The individual multimedia contents broadcasting equipment 100 a locreates and stores broadcast multimedia contents depending on abroadcaster's operation and allocates a private IP depending on aconnection request of the receiving terminal 300 and forms a radionetwork and transmits a broadcast multimedia content selected by meansof a broadcaster's operation. The individual multimedia contentsbroadcasting equipment 100 a might be equipped with an input unit suchas an operation unit 104 a, a microphone 104 b, a camera 104 c orsomething, an output unit such as a speaker 104 d, a LCD 104 e orsomething, a mobile communication terminal having a radio communicationunit 102 for a data receiving and transmission through a radio network,and an individual information communication instrument such as a PDA, apalm top computer, a UMPC, a navigation device, a portable game unit orsomething. The functions and constructions of the individual multimediacontents broadcast equipment 100 a will be described with reference toFIGS. 2A and 2B.

Here, the radio network created and maintained by means of theindividual multimedia contents broadcasting equipment 100 a is designedto use an ISM (Industrial, Science and Medical) radio frequency band ora U-NII 5 GHz radio frequency band. The ISM radio frequency band is afrequency band allocated by the FCC for the use in industry, a scienceand a medical field. 902.about.928 MHz, 2.4 G.about.2.4835 GHz and 5.725GHz.about.5.835 GHz frequency bands are set for the ISM bands. Thesefrequency bands are not needed to have ant permission for a frequencyallocation. The output of the equipment which uses the above frequencybands is 17 dBm/50 mW. The U-NII 5 GHz radio frequency band is afrequency band used in the IEEE 802.11a and HIPERLAN/2 which also doesnot need any permission for a frequency Lo allocation.

In the present invention, 802.11a, 802.11b or 802.11g might be used orproperly combined for a LAN radio communication. The 802.11a, 802.11band 802.11g are the protocols for a radio LAN developed by the IEEE workgroup. The above three protocols use CSMA/CA which is an Ethernetprotocol. The 802.11b provides a rate of 11 Mbps per second, whereas thelatest 802.11g provides a relatively shorter distance communication at arate of 54 Mbps in maximum. Since the 802.11g works in a 2.4 GHz bandlike 802.11b, there is compatibility between the above two protocols.The modulation method used in 802.11 is traditionally PSK, but themodulation applied in 802.11b provides a faster data transmission rate,and uses CCK which is not interfered with multiplexed transmissionpassages. The 802.11a is generally used in a radio ATM system, namely inan access hub. The 802.11a is applied in a radio frequency bandwidth of5 GHz-6 GHz. The 802.11a uses a modulation method which is called anOFDM for a data transmission rate up to 54 Mbps in maximum.

In case of 5 GHz band, since it is a relatively higher frequency, it isnot proper that other small compact sized radio devices might competewith one another for frequencies. The IEEE 802.11a has much lessinterferences by means of other devices as compared to the IEEE 802.11band advantageously supports a faster transmission rate of 54 Mbps. It ispreferred that the radio network according to the present invention isconfigured in an independent network for a personal broadcasting serviceprovided using a private IP through a DHCP function of the individualmultimedia contents broadcasting equipment 100 a.

It is disadvantageous that the IEEE 802.11a, IEEE 802.11b, and IEEE802.11g might be used only for the LAN radio communication. So as toovercome the above disadvantages, the individual multimedia contentsbroadcasting equipment according to the present invention might befurther equipped with an individual multimedia contents relaybroadcasting equipment 100 b. The individual multimedia contents relaybroadcasting equipment 100 b is configured in the same manner as theindividual multimedia contents broadcasting equipment 100 a. A privateIP is allocated from the individual multimedia contents broadcastingequipment 100 a in a radio communication radius of the individualmultimedia contents broadcasting equipment 100 a, and the individualbroadcast received depending on a request of the receiving terminal 300c in a relay radio network range, which requests a received individualbroadcast viewing, is relayed. Namely, the individual multimediacontents broadcasting system according to the present invention canovercome the problems of the radio data communication radius by usingthe individual multimedia contents relay broadcasting equipment 100 b,so it is possible to watch an individual broadcast from a relativelyfarther distance.

FIG. 2A is a block diagram of a physical internal construction of anindividual multimedia contents broadcasting equipment in an individualmultimedia contents broadcasting which uses an ISM radio frequency bandor a U-NII 5 GHz radio frequency band.

As shown in FIG. 2A, the individual multimedia contents broadcastingequipment 100 a according to the present invention comprises an inputand output unit 104, an individual broadcast process unit 103, a radiocommunication unit 102, an antenna 101, and a power supply unit 105.

The input and output unit 104 includes an input part and an output part.The input part is formed of at least one among an operation unit 104 afor receiving a control signal based on a broadcaster's operation, amicrophone 104 b for receiving a sound data, and a camera 104 c forreceiving a video data. The output part is formed of at least onebetween a speaker 104 d for is outputting a sound data, a LCD 104 e foroutputting a video data and something. Here, the operation unit 104 arepresents an input device such as a keypad, a keyboard, a mouse, atouch screen or something. The microphone 104 b and the camera 104 cmight be formed of a microphone 104 b and a camera 104 c provided in theindividual multimedia contents broadcasting equipment 100 a or might beformed of an external microphone 104 b and a camera 104 c connectedthrough an interface part such as a USB port. The input and output unit104 is configured by using a known art. So, the detailed descriptions ofthe same will be omitted.

The individual broadcast process unit 103 creates and stores broadcastcontents using a data inputted through an input unit and provides areceiving terminal, which requests a connection, with a private IP forthereby connecting through a radio network and transmits broadcastcontents to the receiving terminal connected. More preferably, theindividual broadcast process unit 103 according to the present inventionincludes a broadcast module 103 c, a storing device 103 b and acontroller 103 a.

The broadcast module 103 c creates and stores broadcast contents using adata inputted through an input unit depending on a broadcaster'soperation and provides a private IP to the receiving terminal 300 whichrequests a connection for thereby connecting through a radio network andtransmits an individual multimedia content to the connected receivingterminal 300 based on a broadcaster's selection. At this time, theindividual broadcasting multimedia contents broadcasted through thereceiving terminal 300 according to the present invention might be atext data, a symbol data, a music data inputted through the microphone104 b, a sound data, an audio data, a video data inputted through thecamera 104 c, an image data, a photo data or a combination of the same.

The individual broadcasting multimedia contents according to the presentinvention might be an individual broadcasting multimedia content createdin real time from the broadcasting module 103 c depending on abroadcaster's operation, an individual broadcasting multimedia contentstored in the storing device 103 b, an individual broadcastingmultimedia content created in real time, an individual broadcastingmultimedia content stored in the storing device 103 b or a combinationof the same and might be transmitted. When a broadcaster selects a realtime broadcast by operating the individual multimedia contentsbroadcasting equipment 100 a, the individual multimedia contentsbroadcasting equipment 100 a according to the present invention createsan individual broadcasting multimedia content using a sound data, anaudio data, a text data and a video data inputted in real time from theinput unit, and transmits in real time to the receiving terminal 300.When the broadcaster selects a recording broadcast, the individualbroadcasting multimedia content previously created and stored in thestoring device 103 b is transmitted to the receiving terminal 300. Whenthe broadcaster selects a combined content (for example, when a specificcontent previously created and stored in the storing device 103 b isselected as a background image, and when it is combined with a motionimage inputted in real time on the background image and it isbroadcasted), the contents combined with the individual broadcastingmultimedia contents created in real time and the individual broadcastingmultimedia contents stored in the storing device 103 b are transmittedto the receiving terminal 300.

The storing device 103 b includes various programs used for driving theindividual multimedia contents broadcasting equipment 100 b and storesan individual broadcasting multimedia content created from thebroadcasting module 103 c depending on a broadcaster's selection. Thestoring device 103 b might be formed of various universal storingdevices such as a hard disk drive, a ram disk drive or something.

The controller 103 a controls a broadcast module 103 c, a storing device103 b, an input and output unit 104 and a radio communication unit 102depending on a control signal inputted through the operation unit 104 a,and creates an individual broadcasting multimedia content and performsan individual multimedia contents broadcasting.

The radio communication unit 102 forms a radio network and performs adata communication with the receiving terminal 300 connected through aradio network and is configured to substantially support the IEEE802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n which are selecteddepending on the needs in the individual multimedia contentsbroadcasting system according to the present invention.

As shown in FIG. 2B, the broadcast module 103 c according to the presentinvention comprises an input and output module 202, an individual tobroadcast process module 200, and a radio communication module 201. Theinput and output module 202 is a device drive of an input and outputunit and controls a data input through the input unit and a data outputthrough the output unit, and the radio communication module 201 is adevice drive of the radio communication unit 102 and controls the radiocommunication unit 102 and broadcasts the individual broadcastingmultimedia contents on the receiving terminal 300 depending on thebroadcaster's operation.

The individual broadcast process module 200 is a key module forperforming an individual multimedia contents broadcasting according tothe present invention and creates and stores a multimedia content usingthe data inputted from the input unit and allocates a private IP througha DHCP (Dynamic Host Configuration Protocol) to the receiving terminalwhich requested a connection and sets a connection or retrieves theprovided private IP and disconnects the connection and transmits anindividual broadcasting multimedia content to the connected receivingterminal 300 based on the broadcaster's selection. So as to perform theabove operations, the individual broadcast process module 200 comprisesa DHCP module 200 a, a private IP management module 200 b, anauthentication module 200 c, a playback tool management module 200 d, aconnection terminal management module 200 e, and a content creationmodule 200 f.

The content creation module 200 f creates a text data and a symbol datainputted through the individual broadcasting multimedia contentoperation unit 104 a using a data inputted through the input unit, amusic data, a sound data and an audio data inputted through themicrophone 104 b, and a video data, an to image data and a photo datainputted through the camera 104 c and combines the same. So as toperform the above operations, the content creation module 200 faccording to the present invention is configured to support atext/symbol input function, a music/sound encoding function, aphoto/motion picture encoding function or something. It further supportsa combining and encoding function for a mixed content creation. Here,the encoding codes might be selected from mp3, wma, jpg, asp, mpeg, xvidor something. An exclusive codec might be used.

The DHCP module 200 a allocates a private IP through a DHCP function tothe receiving terminal 300 connected, and sets a connection or retrievesthe allocated private IP and disconnects the connection. Namely, theDHCP module 200 a according to the present invention performs a DHCPserver function and sets a private IP in the receiving terminal 300,which requested a connection in an individual broadcasting independentradio network, by using a private IP information stored in the privateIP management module, so the individual broadcasting independent radionetwork might be configured, and the individual broadcasting might bewatched.

The private IP management module 200 b stores and manages a private IPinformation to be allocated to the receiving terminal 300, and a privateIP information allocated to the current receiving terminal 300. Theprivate IP information created and stored by the private IP managementmodule 200 b is referred by means of the DHCP module 200 a, so a privateIP to be allocated to the receiving terminal 300 is determined. When theprivate IP is allocated to the receiving terminal 300 or is retrieved,and the connection is disconnected, the above operation is updated inreal time.

The playback tool management module 200 d judges whether the contentplayback tool is installed or not in the connected receiving terminal300. When it is not installed, the multimedia content playback toolstored in the storing device 103 b is transmitted to the receivingterminal 300 and is automatically installed, so the multimedia contentscan be played back. At this time, the multimedia content playback toolinstalled in the receiving terminal 300 is configured to decode theencoded multimedia data depending on the adapted encoding codec or acodec previously installed in the receiving terminal 300 might be usedor a certain codec might be previously installed in the multimediacontent playback tool.

When the broadcaster selects an authentication function, theauthentication module 200 c performs an authentication using terminalinformation, so that only the authenticated receiving terminal 300 canview an individual broadcast. So as to perform the above operations, theauthentication module receives registration information from a newterminal (or user) who wants to view the individual broadcast, andcreates an authentication information and stores in the storing device103 b, for thereby finishing a new registration. The authenticationinformation stored in the storing device 103 b is compared with theauthentication information (terminal information or user information)received from the connected receiving terminal, so a neededauthentication is performed. As a result, when the authentication issucceeded, the content receipt of the receiving terminal 300 ispermitted, and when the authentication is failed, the private IPprovided to the receiving terminal 300 is retrieved, and the connectionis finished.

The connection terminal management module 200 e monitors in real timeconnection information including at least one among the number ofconnected receiving terminals, a connection state, a radio communicationsensitivity or something and displays the current connection informationon the LCD 104 e temporarily or periodically depending on the previouslyset information and provides to the broadcaster in real time. The realtime connection information monitored by means of the connectionterminal management module 200 e is stored in the storing device 103 bin a DB form. The connection terminal management module 200 e extractsand provides connection information stored in the database when thebroadcaster requests a connection data such as connection information ofa certain time period or a specific time section or provides thebroadcaster with a statistic data.

The individual multimedia contents broadcasting equipment 100 baccording to the present invention receives an allocation of the privateIP from other individual multimedia contents broadcasting equipments 100a for thereby receiving the contents broadcasted by means of anotherindividual multimedia contents broadcasting equipment 100 a. So, theindividual multimedia contents broadcasting equipment 100 b according tothe present invention performs a relay broadcast in a relay region whererequests a receipt of the multimedia contents received from anotherindividual multimedia contents broadcasting equipment 100 a. Theindividual multimedia contents broadcasting equipment 100 b having arelay function is formed in the same construction as the individualmultimedia contents broadcasting equipment 100 a which performs theabove broadcasting functions, provided that there are differences onlyin the contents received from the individual multimedia contentsbroadcasting equipment 100 a. So, the construction and operations of thesame will be omitted. The above relay function is provided forovercoming the limits in the LAN radio communication radius. When therelay function is used, an expansion of the independent radio networkfor an individual broadcast might be possible. The relay function willbe described later with reference to FIGS. 5 and 6.

The individual multimedia contents broadcasting equipment 100 aaccording to the present invention might be configured in fixedbroadcast equipment or portable broadcast equipment. In case of thefixed type, an individual information communication instrument such as adesk top system except for a portable or mobile communication instrumentmight be used. In case of the portable type, a portable individualinformation communication instrument such as a mobile communicationterminal, a PDA, a palm top computer, a UMPC, a navigation device, aportable game unit or something might be used. The individual multimediacontents broadcasting equipment 100 b having a relay function might be amobile system while maintaining a radio communication radius which is arelatively shorter distance as compared to the fixed type.

FIG. 3 is a block diagram of an inner construction of a receivingterminal which is capable of receiving individual multimedia contentsbroadcasting which uses an ISM radio frequency band or a U-NII 5 GHzradio frequency band.

As shown in FIG. 3, the receiving terminal 300 according to the presentinvention comprises an antenna 10 a, a radio communication unit 102, aprocessor 103 a, a storing device 103 b, an input and output unit 104,and a power supply unit 105. The above elements are key parts in theindividual information communication instrument and operate in the samemanner as the elements of the individual multimedia contentsbroadcasting equipment 100 a. So, the detailed descriptions of the samewill be omitted. The receiving terminal 300 according to the presentinvention is equipped with a multimedia contents playback tool (notshown) which is used for playing back the contents from the individualmultimedia contents broadcasting equipment 100 a. When the logicallyoperable broadcast module 103 c is integrally provided in the system,not being independent from the contents playback tool, and is installedin the receiving terminal 300, the receiving terminal 300 receivesbroadcast contents from the other receiving terminal (individualmultimedia contents broadcasting equipment 100 a) and plays back thesame. When the user wants, the user can perform own individual broadcastusing the broadcast module 103 c. When the broadcast module 103 c andthe contents playback tools are separately installed, it is needed toinstall both the broadcast module 103 c and the contents playback toolfor each corresponding function.

FIG. 4 is a flow chart of an individual broadcast procedure of theindividual multimedia contents broadcasting equipment in the individualmultimedia contents broadcasting which uses an ISM radio frequency bandand a U-NII 5 GHz radio frequency band according to the presentinvention. The individual broadcast manufacturing method according tothe present invention will be described with reference to FIG. 4.

An individual broadcast driving instruction inputted through theoperation unit 104 a depending on a broadcaster's operation isinterpreted by means of a key input module 202 a, and is transmitted tothe controller 103 a. The controller 103 a judges whether the multimediacontents stored in the storing device 103 b are broadcasted or themultimedia contents inputted through the input and output unit 104 arebroadcasted in real time in a step S400.

In case that the individual broadcast driving instruction corresponds toa recording broadcast in which the multimedia contents stored in thestoring device 103 b are broadcasted, the controller 103 a transmits themultimedia contents stored in the storing device 103 b to the radiocommunication instrument 102, and a corresponding broadcast beings in astep S402.

When the broadcaster selects a real time broadcast, the text data andsymbol data inputted trough the operation unit 104 a are interpreted bymeans of the key input module 202 a, and the music data, audio data andsound data inputted through the microphone 104 a are interpreted bymeans of the audio input module 202 b, and the image data, image data,and photo data inputted through the camera 104 c are interpreted bymeans of the video input module 202 c. The above data are sequentiallytransferred to the controller 103 a in a step S401. The controller 103 acreates multimedia contents in real time in a sequence of the input, andstores into the storing device 103 b, and transmits the multimediacontents created in real time through the radio communication unit 102,and the broadcast begins.

In the steps S402 and S403, the multimedia contents, which areindividually broadcasted, are outputted to the speaker 104 d by theprocess of the controller 103 a, and the music data, audio data andsound data are outputted to the speaker 104 d through the audio outputmodule 202 d. The video data, image data, and photo data are outputtedto the LCD 104 e through the video output module 202 e. The broadcasterperforms a broadcast while checking the contents of the multimediacontents which are being broadcasted through the output unit of theindividual multimedia contents broadcasting equipment 100 a.

In the step S401, when the multimedia contents stored in the storingdevice 103 b with a periodically repeated judgment process after theindividual broadcast has begun are broadcasted, the multimedia contentsinputted through the input and output device 104 are combined with themultimedia contents of the storing device 103 b depending on the processof the processor 103 a as a result of the judgment of the step S401 andare broadcasted.

Next, the controller 103 a judges a connection request of the receivingterminal 300. When there is a request, a private IP allocable to thereceiving terminal 300 which requested a connection with reference tothe current private IP information managed by means of the private IPmanagement module 200 b through the DHCP module 200 a is selected andautomatically allocated to the receiving terminal for thereby setting aconnection in steps S404 and S405.

When an authentication function is not activated after a connection isset, the authentication module 200 c receives authentication informationfrom the connected receiving terminal 300 and compares with theauthentication information stored in the storing device 103 b forthereby judging whether the connected receiving terminal is thereceiving terminal 300 registered in the connection terminal managementmodule 200 e in steps S406 and S407.

As a result of the judgment of the registration, when the connectedreceiving terminal is not the authenticated receiving terminal 300, theallocated private IP is retrieved, and the connection is automaticallydisconnected, and the broadcast receipt is prohibited in a step S408,and in case of the authenticated receiving terminal, the step S409 isperformed.

Next, the controller 103 a judges whether there is a playback tool inthe authenticated receiving terminal 300 for playing back the broadcastcontents with the helps of the playback module 200 d in a step S409, andwhen a playback tool is not installed, the playback tool stored in thestoring device 103 b is transmitted to the receiving terminal 300 usingthe playback tool module 200 d and is installed in a step S410. When anindividual content can be played back in the receiving terminal 300, thecontroller 103 a transmits a currently broadcasting content selected bythe broadcaster to the receiving terminal 300, and the receivingterminal 300 receives the broadcast content and plays back the same. Atthis time, the connection terminal management module 200 e of theindividual multimedia contents broadcasting equipment 100 periodicallytransmits a connection state of the receiving terminal 300 to the videooutput module 202 e, and the video output module 202 e indicates theconnection state of the receiving terminal 300 on the LCD 104 e andperiodically manages the same.

When the individual broadcast is continuously performed, the routine isrepeated from the step S401 to the step S412. When it is judged that theindividual broadcast is finished, the individual broadcast operation isstopped in a step S412.

FIG. 5 is a view of a relay broadcast method of an individual multimediacontents broadcasting equipment in an individual multimedia contentsbroadcasting which uses an ISM radio frequency band or a U-NII 5 GHzradio frequency band according to an embodiment of the presentinvention. FIG. 6 is a view of an individual multimedia contentsbroadcasting service method in an individual multimedia contentsbroadcasting which uses an ISM radio frequency band or a U-NII 5 GHzradio frequency band according to an embodiment of the presentinvention.

The relay broadcast system and method according to the present inventionwill be described with reference to FIGS. 5 and 6.

As shown in FIGS. 5 and 6, the individual multimedia contentsbroadcasting equipment 100 b is capable of performing individualmultimedia contents broadcast, and is capable of receiving and relayingthe multimedia contents which are being broadcasted in anotherindividual multimedia contents broadcasting equipment 100 a. Namely, anindividual broadcast mode or a relay mode is set by means of theoperation unit 104 a, a connection is requested to another individualmultimedia contents broadcasting equipment 100 a which is performing anindividual broadcast by means of the operation of the processor 103 a,and a private IP is allocated, and its registration information istransmitted. The multimedia contents, which are being individuallybroadcasted through the radio occupying channel 500 a of the ISM radiofrequency band or the U-NII 5 GHz radio frequency band 500 from anotherindividual multimedia contents broadcasting equipment 100 a, which isperforming an individual broadcast, are received, and played back bymeans of the speaker 104 d and the LCD 104 e. In addition, the receivedmultimedia contents are relayed to another individual multimediacontents broadcasting equipment (not shown), which is set in a receivingmode or a relay mode, by allocating a channel 500 b which might be usedin the ISM radio frequency band or the U-NII radio frequency band 500except for the occupying channel 500 a. The receiving terminal 300 mightbe connected to the individual multimedia contents broadcastingequipment 100 a which performs an individual broadcast or might beconnected to the individual multimedia contents broadcasting equipment100 b which relays an individual broadcast, which broadcasts are same.As shown in FIG. 6, the individual multimedia contents broadcastingequipment 100 a defined with the private IP 192.168.0.1 (600 b)allocates the private IP 192.168.0.2 (600 a); 192.168.0.100 (600 c) tothe receiving terminal 300 which wants to receive a broadcast in anearby region where is able to receive the individual broadcast, andallocates the private IP 192.168.0.10 (600 d) to the individualmultimedia contents broadcasting equipment 100 b, which is in thecurrent broadcast mode, for thereby providing an individual broadcastservice through the occupying channel 500 a. At this time, theindividual multimedia contents broadcasting equipment 100 b, which is inthe relay broadcast mode and has received the allocation of the privateIP 192.168.0.10 (600 d), allocates the private IP 192.168.1.2 (600 e);192.168.1.254 (600 f) to the receiving terminal 300 in the nearbyregion, and the individual broadcast is received through the availablechannel 500 b. Here, the private IP and channels can be reused. Theabove features are not limited to the disclosed features of FIGS. 5 and6.

INDUSTRIAL APPLICABILITY

As described above, the present invention relates a personal tomultimedia contents broadcasting equipment and a method thereof whichprovide functions for broadcasting multimedia contents such as a textdata, a symbol data, a music data, a sound data, an audio data, a videodata, an image data, a photo data or something, with their intellectualproperties belonging to individuals, respectively, to a specificreceiving terminal by using an ISM radio frequency band or a U-NII 5 GHzradio frequency band

As the present invention may be embodied in several forms withoutdeparting from the spirit or essential characteristics thereof, itshould also be understood that the above-described examples are notlimited by any of the details of the foregoing description, unlessotherwise specified, but rather should be construed broadly within itsspirit and scope as defined in the appended claims, and therefore allchanges and modifications that fall within the meets and bounds of theclaims, or equivalences of such meets and bounds are therefore intendedto be embraced by the appended claims.

What is claimed is:
 1. A device for transmitting multimedia content, thedevice operating with an individual wireless connection to a vehicle'sElectronic Control Unit (ECU), comprising: a storing device configuredto store multimedia contents; an operation unit configured to receive acontrol signal from a user of the device; a processor; and a radiocommunication unit configured to establish the individual wirelessconnection to the vehicle's ECU and a wireless connection to a mobilenetwork, wherein the processor is configured to create multimediacontents comprising navigation information in real time in accordancewith the control signal, and transmit the multimedia contents comprisingnavigation information to the vehicle's ECU via the individual wirelessconnection.
 2. The device of claim 1, wherein the creating themultimedia contents comprising navigation information in real time bythe processor comprises: creating the multimedia contents comprisingnavigation information based on a stored map data in accordance with thecontrol signal.
 3. The device of claim 2, wherein the multimediacontents are created using any one or any combination of any two or moreof a sound data, an audio data, a text data, and a video data, stored inthe storing device.
 4. The device of claim 1, wherein the processor isfurther configured to: transmit the multimedia contents stored in thestoring device to the vehicle's ECU via the individual wirelessconnection.
 5. The device of claim 1, wherein the individual wirelessconnection is based on an Industrial, Science, and Medical (ISM) band.6. The device of claim 1, wherein the device further comprises a DHCP IPallocator configured to allocate a private IP address to the vehicle'sECU while the radio communication unit establishes the individualwireless connection.
 7. The device of claim 5, wherein the individualwireless connection is based on an IEEE 802.11 protocol.
 8. The deviceof claim 5, wherein the individual wireless connection is based on aBluetooth protocol.
 9. A method for transmitting multimedia contentswith an individual wireless connection to a vehicle's Electronic ControlUnit (ECU), the method comprising: receiving a control signal from auser by an operation unit of a device for transmitting multimediacontent; establishing the individual wireless connection to thevehicle's ECU and a wireless connection to a mobile network by a radiocommunication unit of the device for transmitting multimedia content;creating multimedia contents comprising navigation information in realtime in accordance with the control signal by a processor of the devicefor transmitting multimedia content; storing the multimedia contents bya storing device of the device for transmitting multimedia content; andtransmitting the multimedia contents comprising navigation informationto the vehicle's ECU via the individual wireless connection by theprocessor of the device for transmitting multimedia content.
 10. Themethod of claim 9, wherein the creating of the multimedia contentsincluding navigation information further comprises: creating themultimedia contents comprising navigation information based on a storedmap data in accordance with the control signal by the processor of thedevice for transmitting multimedia content.
 11. The method of claim 10,wherein the multimedia contents are created using any one or anycombination of any two or more of a sound data, an audio data, a textdata, and a video data, stored in a storing device.
 12. The method ofclaim 9, further comprising: transmitting the multimedia contents storedin a storing device to the vehicle's ECU via the individual wirelessconnection by the processor of the device for transmitting multimediacontent.
 13. The method of claim 9, wherein the individual wirelessconnection is based on an Industrial, Science, and Medical (ISM) band.14. The method of claim 9, wherein the individual wireless connection isbased on an IEEE 802.11 protocol.
 15. The method of claim 9, wherein theindividual wireless connection is based on a Bluetooth protocol.